Sash-lock.



A. WOLF.

SASH LOCK APPucATloN man MAY 4. Isn.

Patented Mar. 5, 1918.

@wd/"674W UNITE STT SASH-LOCK.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Application filed May 4, 1917. Serial No. 166,399.

To ZZ fui/om t may concern:

Be it known that I, ALBERT lVoLr, a citizen of the United States,residing at Traverse City, in the county of Grand Traverse and State ofMichigan, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

This invention relates to sash fasteners and has for its object theprovision of a simple and inexpensive device which may be readilyapplied to the sashes of a window and which will operate automaticallyto fasten the sashes when they are moved to closed position.

The invention is illustrated in the accompanying drawings and will beherinafter first fully described and then more particularly out in theappended claims.

In the said drawings:

Figure 1 is a view partly in elevation and partly in vertical section ofa portion of a window showing my improved fastener in position, thesashes being slightly separated;

Fig. f2 is a similar view showing the sashes closed and the fastener inlocked position;

Fig. 3 is a detail perspective View of the keeper member of the lock,and

Fig. 4 is a detail perspective View of the latch or lever member.

The window frame 1 may be of the usual or any preferred construction andthe upper sash 2 and lower sash 3 will be slidably mounted therein inthe usual manner. Upon the lower or meeting` rail of the upper sash, Isecure the keeper member of the lock which consists of a base plate 4provided with suitable openings for the reception of fastening screws orsimilar devices and having erected upon its upper side, intermediate itsends, a housing or keeper 5 having an opening G in its inner wall topermit the entrance of the latch. The interior of the housing may behollow and the inner front wall 7 thereof will taper downwardly. asshown in Figs; 1 and 2, to be readily engaged by the locking end of thelatch, as will be presently set forth. Upon the upper or meeting rail ofthe lower sash. I secure the latch member of the lock consisting of abase plate 8 provided with suitable openings 9 for the reception ofscrews or other fastening devices and having spaced standards 10 risingfrom its upper side. Between these standards, I arrange the latch 11which is pivoted by a pin 12 to the upper extremities of the standardsand the kupper' and inner edges of the said standards are curvedconcentric with the pivot, as shown at 13, to permit free movement ofthe studs 14 projecting from the sides of the latch, as clearly shown.`rIhe outer upper extremities of the standards are provided with lugs orrests 15 upon which the studs 14 will impinge when the latch is releasedand will thereby support the latch in the released position, as shown inFig. 1. vWhen the latch is in ti e locked position, these studs willrest upon the inwardly extending portion of the upper edges of thestandards, as shown in Figs. 2 and 4, and will thereby support the latchin the locked position. The latch is provided at its inner or upper endlwith a laterally projecting handle 16 by which it may be readilymanipulated and which will add weight to the latch which will tend tohold it in the locked position, as shown in Fig. 2. At the outer orlower end of the latch, I construct a hook or curved finger 17 which ispreferably disposed concentric with the pivot 12. By reason of thisconstruction, when the latch is thrown downward, as shown in Fig. 2, thehook or locking finger will pass through the opening or entrance 6 tothe keeper and the concave surface of the hook will engage immediatelybehind the convex inner surface of the wall 7 and will bind thereon tothereby hold the parts firmly together. When the latch is released fromthe keeper or fully withdrawn therefrom, the handle end of the latchwill project over the keeper, as shown in Fig. 1, so that if the sashesbe brought together into closed position, the upper extremity of thekeeper. 18, will engage against the edge of the latch, as shown in Fig.1, and will swing the same about its pivot so that the hook 17 willenter the keeper and hold the parts together.

It will be readily noted from the foregoing description, taken inconnection with the accompanying' drawings, that I have provided anexceedingly simple and inexpensive fastener by which the sashes will befirmly held together when closed and will be automatically locked as thesashes are moved to closed position. No attention is, therefore,required to insure the fastening of the sashes when the window is closedand the possibility of leaving a window unlatched is overcome.

Having thus described the invention, what is claimed as new is:

l. ln a sash lock, the combination of a keeper having a locking wall atits inner side, a freely pivoted latch having a hook at one end adaptedto pass below and engage behind said locking wall and bind thereon,rests above and below the pivot o the latch, and means on the side ofthe latch to engage against said rests, the latch extending across thetop of the keeper when in engageinent with the upper rests.

2. In a sash lock, the combination of a keeper, a pair of standardshaving rests at Copies of this patent may be obtained for their upperends, a latch pivotally mounted between the upper ends of said standardsand constructed with a hook to engage the keeper, the edges of thestandards extend ing inwardly from the said rests being concentric withthe pivot ot the latch to pass downwardly and slightly outwardly, andprojections on the sides of the latch adjacent the pivot thereof adaptedto ride on said concentric portions of the standards and bear upon thesaid rests in released position and in locked position bear upon theedges of the standards at the bases of said concentric portions.

In testimony whereof I alliX iny si gnature.

ALBERT WOLF. [n s] five cents each, by addressing the Commissioner ofPatents,

Washington, D. C.

